diff -ur openpam-20050616.orig/lib/openpam_configure.c openpam-20050616/lib/openpam_configure.c
--- openpam-20050616.orig/lib/openpam_configure.c	2005-06-15 23:00:00 +0100
+++ openpam-20050616/lib/openpam_configure.c	2007-02-06 14:55:20 +0000
@@ -220,8 +220,14 @@
 			goto syserr;
 		this->module = openpam_load_module(name);
 		FREE(name);
-		if (this->module == NULL)
+		if (this->module == NULL) {
+			if (this->flag == PAM_OPTIONAL ||
+			    this->flag == PAM_SUFFICIENT) {
+				free(this);
+				continue;
+			}
 			goto fail;
+		}
 
 		/* module options */
 		p = q = next_word(p);
@@ -249,7 +255,7 @@
 		/* next please... */
 		FREE(line);
 	}
-	if (!feof(f))
+	if (!feof(f) || count == 0)
 		goto syserr;
 	fclose(f);
 	return (count);